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Mid-air interaction is a distinct style of natural HCI (Human-Computer Interaction). In mid-air interaction, users make use of their whole body—with a strong focus on hands—and apply gestures, postures, and movements to interact with digital content on distant displays or remote devices. Although the idea of exploiting body movements and gestures in HCI is not new, mid-air interaction is now possible due to the availability of reasonably priced depth cameras and sensors. This article presents a systematic review of empirical research in mid-air interaction, based on a corpus of 104 publications from 2011 to 2018. The review includes: (a) a retrospective on mid-air interaction, which outlines its historical development and clarifications on important concepts; (b) current application domains of mid-air interaction; (c) user requirements methods, focusing on gesture elicitation studies; (d) dimensions of prototyping and design; (e) empirical evaluation methods and issues; (f) a discussion on several trends and challenges for further research and development.
Koutsabasis et al. (Tue,) studied this question.